如何将PNG图像读取到NSImage [英] How to read PNG image to NSImage

问题描述

我如何将PNG图像读取到NSImage。我尝试了以下方法，但是当我获得图像的宽度和大小时，我得到了一些怪异的值..如果有人可以将我引向正确的道路..非常合适..

how can i read PNG image to NSImage. I tried the following way,but when i get the width and size of the image i'm getting some weird value.. if any one can direct me in right path.. highly appropriate..

 NSImage * picture =  [[NSImage alloc] initWithContentsOfFile: [bundleRoot stringByAppendingString:tString]];

 NSLog(@"sixe %d %d",picture.size.width, picture.size.height);
 if( picture ){ 
  NSLog(@"Picture is not null"); 
 }else {
  NSLog(@"Picture is null.");
 }

谢谢

推荐答案

您加载图像的代码正确。

Your code to load the image is correct.

显示尺寸的代码不正确； NSSize的成员是CGFloat，应使用％f格式字符串打印：

The code to display the size is incorrect; NSSize's members are CGFloat which should be print with the %f format string:

NSLog(@"size %f %f",picture.size.width, picture.size.height);

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